jGnash is not currently distributed with an automatic installation tool. You will be required to perform a couple of manual operations that are easily performed for those with a basic understanding of how to use a zip file. Also, you must have Java™ 6 or newer installed on your computer.
Java can be downloaded and installed from http://java.com. Java installation is a simple matter of downloading the correct version for your operating system and using the automated installer.
After Java is installed, you are ready to install jGnash. Simply
open the zip file and extract the jGnash
directory
and it's complete contents to a directory of your choice, and do not
alter the files or locations. I usually create a directory named "bin"
in my home directory and keep the jGnash
directory
in it to better organize my computer. When upgrading between versions of
jGnash, do not unzip to the same location and overwrite the existing
files. Use a new location or delete the existing files first.